OTTAWA/MONTREAL (Reuters) - Canada last month attempted to end a deepening dispute with Boeing Co by suggesting it could withdraw a threat not to buy Super Hornet jets if the U.S. firm dropped a trade challenge against Canadian planemaker Bombardier I...

OTTAWA/MONTREAL (Reuters) - Canada last month attempted to end a deepening dispute with Boeing Co by suggesting it could withdraw a threat not to buy Super Hornet jets if the U.S. firm dropped a trade challenge against Canadian planemaker Bombardier Inc , three people with knowledge of the matter told Reuters.